Naked eye 3D real-time display system

Abstract

The invention relates to the technical field of image processing, solves the problems that a traditional display system synthesizes three-dimensional image feedback time through computer software, a microscope depends on an optical eyepiece, view field limitation and eye distance constraint exist, and the use scene of equipment is greatly limited, and discloses a naked eye 3D real-time display system. Comprising a base integrated lower light source group, a host power interface, a power panel and a lower light source regulator, the support assembly is installed on the base and supports the system shell and the upper light source set. A dual-CMOS lens group and an image processing system are arranged in the system shell; the naked eye 3D display comprises a display rear shell, a signal input port and a power supply input port; the adjusting system comprises a lower light source adjuster, an upper light source adjuster, a lens up-down adjuster and a focal length multiplying power adjuster. The system has the advantages that view field limitation and eye distance constraint are eliminated, millisecond-level naked-eye 3D imaging is achieved, and the system is compatible with multi-scene detection application and convenient to use and carry.

Description

Technical Field

[0001] The present invention relates to the technical field of image processing, and specifically refers to a naked-eye 3D real-time display system. Background Art

[0002] A microscope real-time display system is a technical solution that transmits and displays microscopic images observed by a microscope in real time on a display device, and is widely used in fields such as scientific research, education, medical treatment, and industrial inspection. Traditional microscopes are mature and reliable in two-dimensional static imaging scenarios, but are limited by three bottlenecks: lack of dimension, poor environmental adaptability, and dependence on manual experience, making it difficult to meet high-end requirements such as modern industrial dynamic detection and medical real-time three-dimensional imaging.

[0003] Most microscope display systems are in a 2D imaging mode or synthesize a 3D mode through computer software. 2D imaging cannot directly obtain the spatial depth information of an object, and the device uses a single visible light source. In scenarios such as crack detection of mining equipment and layered observation of biological tissues, the operator needs to infer the three-dimensional structure based on experience. Synthesizing a 3D mode with computer software requires transmitting binocular camera images to a computer, synthesizing a depth map with software algorithms, and outputting to a 3D display. The image feedback time is long, and there is a problem of computer operation delaying treatment. Microscopes rely on optical eyepieces, with limitations in field of view and eye distance constraints. Multiple components are in a split and bulky structure, making them inconvenient to carry and having limited usage scenarios. Summary of the Invention

[0004] In order to solve the above problems of the long feedback time of computer software synthesizing 3D images, the microscope relying on an optical eyepiece with limitations in field of view and eye distance constraints, and the large limitation of the device usage scenario, the present invention provides a naked-eye 3D real-time display system.

[0005] 1. To solve the above technical problems, the technical solution provided by the present invention is: a naked-eye 3D real-time display system, comprising: a base: integrating a lower light source group, a host power interface, a power board, and a lower light source regulator;

[0006] A bracket assembly: installed on the base, with an up-and-down adjustable connecting rod at the upper end of the bracket assembly (2), and the connecting rod is used to support the system housing;

[0007] The system housing: internally provided with a dual CMOS lens group, an image processing system, and an upper light source group;

[0008] A naked-eye 3D display: including a display rear shell, a signal input port, and a power input port;

[0009] An adjustment system: including a lower light source regulator, an upper light source regulator, a lens up-and-down regulator, and a focal length magnification regulator;

[0010] Among them, the lower light source adjuster is set on one side of the base, the lens up and down adjuster is set on the connecting rod, and the upper light source adjuster and focal length magnification adjuster are both set on one side of the system housing. The imaging parameters are dynamically linked and controlled through the lens up and down adjuster and focal length magnification adjuster.

[0011] The dual CMOS lens group replaces the optical eyepiece and directly outputs digital image signals; the image processing system is an FPGA module with a hardware-integrated parallax synthesis algorithm, which converts the CMOS signal into a cylindrical lens 3D display signal in real time; the upper and lower light source groups both support 6500K full color temperature white light and 650nm / 830nm / 940nm infrared bands.

[0012] The dual CMOS lens group replaces the optical eyepiece and directly outputs digital image signals, eliminating the field of view limitations and eye distance constraints of traditional eyepieces; the image processing system is an FPGA module with a hardware-integrated parallax synthesis algorithm, which converts CMOS signals into cylindrical lens 3D display signals in real time; the upper and lower light source groups both support 6500K full color temperature white light and 650nm / 830nm / 940nm infrared bands.

[0013] Preferably, the upper light source regulator and the lower light source regulator both include mechanical paddle filter wheels to achieve physical switching between white light mode (6500nm full color temperature light) and infrared band (650nm / 830nm / 940nm); the upper light source direction regulator supports ±30° deflection adjustment of the light source.

[0014] Preferably, the lens up and down adjuster provides a vertical movement range of 0-50mm to accommodate samples of different thicknesses; the focal length magnification adjuster enables 5X-200X continuous zoom, compatible with microscopic to macroscopic observations.

[0015] Preferably, the FPGA processing flow: the FPGA module converts the dual CMOS data into a lenticular lens compatible light field signal in real time through hardware-level parallel processing, with a processing delay of ≤10ms; the output signal is transmitted point-to-point to the display signal input port via the HDMI interface.

[0016] Preferably, the method comprises the following steps:

[0017] S1: Switch the upper / lower light source to the target band (6500K white light or 650 / 830 / 940nm infrared light) through the mechanical paddle filter wheel;

[0018] S2: Linked adjustment of lens height, focal length magnification, and light source direction to adapt to the object being measured;

[0019] S3: FPGA module hardware synthesizes dual CMOS images in real time to generate naked-eye 3D signals;

[0020] S4: Output the signal directly to the lenticular lens display via HDMI, without any software involved throughout the process.

[0021] The advantages of the present invention are as follows: 1. The dual CMOS lens group directly performs digital imaging, eliminating the field of view limitation and eye distance constraint. With vertical adjustment + continuous zoom + light source deflection, the imaging quality is dynamically optimized, and the operation is convenient.

[0022] 2. The real-time processing efficiency of the FPGA hardware is improved: The PGA hardware integrates the parallax - light field conversion algorithm, eliminates the computer intermediary, and realizes naked-eye 3D imaging at the 10ms level.

[0023] 3. It is compatible with multi-spectra. The mechanical dial filter wheel enables a 0.5s ultra-fast switching, is compatible with multi-scene detection applications, has an integrated design, reduces the volume, and is convenient to carry. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the present invention.

[0025] As shown in the figure:

[0026] 1. Base; 11. Lower light source group; 12. Host power interface; 13. Power board; 14. Lower light source regulator;

[0027] 2. Bracket assembly; 21. Connecting rod;

[0028] System housing; 30. Upper light source group; 31. Dual CMOS lens group; 32. Image processing system; 33. Lens vertical regulator; 34. Focal length magnification regulator; 35. Upper light source regulator;

[0029] 4. Naked-eye 3D display; 41. Display rear case; 42. Signal input port; 43. Power input port. Detailed Embodiment

[0030] The following further elaborates on the present invention in conjunction with the drawings.

[0031] Combined with the attached Figure 1 , a naked-eye 3D real-time display system, the base 1 integrates the lower light source group 11, the host power interface 12, the power board 13, and the lower light source regulator 14. The power board 13 supplies power to the entire system and supports 12V / 5A DC input;

[0032] The bracket assembly 2 is vertically installed on the base 1, and the height of the system housing 3 and the upper light source group 30 is adjusted through the lens vertical regulator 33 and the connecting rod 21;

[0033] The system housing 3 internally houses the upper light source group 30, the dual CMOS lens group 31, and the FPGA image processing system 32. The side wall of the system housing 3 integrates the focal length magnification regulator 34 and the upper light source regulator 35.

[0034] The naked-eye 3D display 4 uses lenticular lens technology to achieve naked-eye 3D display, including a display rear case 41, an HDMI signal input port 42, and a 12V / 3A power input port 43;

[0035] In a specific implementation case, the structure assembly is as follows: The bracket assembly 2 is vertically fixed to the base 1 by bolts, carrying the connecting rod 21 and the system housing 3; The lens up and down regulator installed on the connecting rod controls the lifting of the upper light source group 21 and the system housing 3 (adjustment range 0 - 30 cm);

[0036] The hardware connection operation is as follows: Connect both ends of the HDMI cable to the signal output port of the system housing 3 and the signal input port 42 of the display respectively; A 12V / 5A power adapter is connected to the main power interface 12 of the base 1, and a 12V / 3A power adapter is connected to the power input port 43 of the display; The power board 13 distributes power to the dual CMOS lens group 31, the FPGA module, the upper light source group 21, and the lower light source group 11;

[0037] Light source and optical parameter configuration: Band switching: Toggle the mechanical filter dial of the lower light source regulator 14 on the side of the base 1 and the upper light source regulator 35 on the side of the system housing, and select:

[0038] White light mode: 6500K full color temperature (such as for color-sensitive scenarios such as medical tissue observation);

[0039] Infrared mode: 650nm / 830nm / 940nm (such as 940nm for penetration detection such as the oil layer of mining equipment);

[0040] System structure dynamic adjustment:

[0041] Rotate the lens up and down regulator 33 on the side of the system housing 3 to drive the CMOS lens group to move vertically (0 - 50 mm, accuracy ±0.1 mm);

[0042] Rotate the focal length magnification regulator 34 to achieve continuous zoom from 5X (macroscopic view) to 200X (microscopic observation).

[0043] Set the linkage compensation mechanism: When the lens height increases, the light source intensity automatically increases by 10% / 10 mm (to prevent brightness attenuation);

[0044] When the magnification > 100X, the illumination angle automatically narrows to ±15° (to enhance local contrast).

[0045] Real-time 3D imaging steps:

[0046] The dual CMOS lens group 31 synchronously captures the object image, and directly outputs the digital signal (without the loss of the eyepiece optical path) through the signal output port of the system housing 3 connected to the signal input port 42 of the display via the HDMI cable; the FPGA module performs spatio-temporal registration on the dual-channel CMOS signals through a hardware-level parallax synthesis algorithm, and parallelly calculates the pixel-level depth map; generates a light field 3D signal compatible with the lenticular lens (delay ≤ 10 ms); the 3D signal is transmitted to the display via HDMI point-to-point to present a spatial stereoscopic image with the naked eye.

[0047] Example 1: Real-time medical vascular imaging:

[0048] Light source configuration: Switch the upper light source group 21 to the 650 nm infrared mode (penetrating the skin surface layer);

[0049] Optical parameters: Lens height 20 mm, magnification 10X, light source deflection +20° (side illumination of the limb);

[0050] Effect: The FPGA generates a 3D topology map of subcutaneous blood vessels in real time, with a delay of 8 ms, guiding precise puncture.

[0051] Example 2: Crack detection of military or mining equipment:

[0052] Light source configuration: Switch the lower light source group 11 to the 940 nm infrared mode (penetrating the oil stain on the metal surface);

[0053] Optical parameters: Lens height 40 mm, magnification 50X, light source deflection 0° (vertical illumination);

[0054] Effect: The crack depth of 0.05 mm is displayed in 3D with the naked eye, without software synthesis artifacts.

[0055] Example 3: Teaching microscopic observation:

[0056] Light source configuration: 6500K white light lower light source;

[0057] Optical parameters: Lens height 10 mm, magnification 200X (details of insect specimens);

[0058] Effect: Multiple people can synchronously observe the three-dimensional structure with the naked eye, without eye distance limitation.

[0059] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A naked-eye 3D real-time display system, characterized in that: Including a base (1): integrating a lower light source group (11), a main power supply interface (12), a power board (13), and a lower light source regulator (14); A bracket assembly (2): installed on the base (1), with an up-and-down adjustable connecting rod (21) provided at the upper end of the bracket assembly (2), and the connecting rod (21) is used to support the system housing (3); The system housing (3): internally provided with an upper light source group (30), a dual CMOS lens group (31), and an image processing system (32); A naked-eye 3D display (4): including a display rear shell (41), a signal input port (42), and a power input port (43); An adjustment system: including a lower light source regulator (14), an upper light source regulator (35), a lens up-and-down regulator (33), and a focal length magnification regulator (34); Among them, the lower light source regulator (14) is provided on one side of the base (1), the lens up-and-down regulator (33) is provided on the connecting rod (21), and the upper light source regulator (35) and the focal length magnification regulator (34) are both provided on one side of the system housing (3), and the imaging parameters are dynamically linked and controlled through the lens up-and-down regulator (33) and the focal length magnification regulator (34). The dual CMOS lens group (31) replaces the optical eyepiece and directly outputs a digital image signal; the image processing system (32) is an FPGA module, and the parallax synthesis algorithm is hardware-integrated to convert the CMOS signal into a lenticular lens 3D display signal in real time; both the upper light source group (30) and the lower light source group (11) support 6500K full-color temperature white light and the 650nm / 830nm / 940nm infrared band.

2. The naked-eye 3D real-time display system according to claim 1, characterized in that: Both the upper light source regulator (15) and the lower light source regulator (14) include a mechanical dial filter wheel to realize the physical switching between the white light mode (6500nm full-color temperature light) and the infrared band (650nm / 830nm / 940nm); the upper light source direction regulator (202) supports the light source to deflect and adjust by ±30°.

3. The naked-eye 3D real-time display system according to claim 1, wherein: The lens up-and-down regulator (33) provides a vertical movement range of 0 - 50mm to adapt to samples of different thicknesses; the focal length magnification regulator (34) realizes continuous zooming from 5X to 200X, compatible with microscopic to macroscopic observations.

4. A naked-eye 3D real-time display system according to claim 1, characterized in that: FPGA processing flow: The FPGA module converts the dual CMOS data into a lenticular lens-compatible light field signal in real time through hardware-level parallel processing, and the processing delay ≤10ms; the output signal is transmitted point-to-point to the display signal input port (42) through the HDMI interface.

5. A naked-eye 3D real-time display system according to claim 1, characterized in that: Including operation steps: S1: Switch the upper / lower light source to the target band (6500K white light or 650 / 830 / 940nm infrared light) through the mechanical dial filter wheel; S2: Linkage-adjust the lens height, focal length magnification, and light source direction to adapt to the object to be measured; S3: The FPGA module hardware synthesizes the dual CMOS images in real time to generate a naked-eye 3D signal; S4: Output the signal to the lenticular lens display through HDMI direct connection, and there is no software participation throughout the process.

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